TIMOLOL MALEATE 5 mg/mL Solution/ Drops
Past resolved recalls for this product (1)
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the beta-Adrenergic Blocker class.
Where does this data come from?
🏭 Manufacturer & labeler
Where does this data come from?
🩺 Clinical
- Yes, and this is something your pharmacist and doctor take seriously. Even though you're putting the drops in your eye, a small amount is absorbed into your bloodstream. This can s...
- I was prescribed timolol eye drops for glaucoma. Can the drops affect my heart or breathing?
- Please don't stop on your own — this is one of the most important things to know about timolol tablets. Stopping suddenly, especially if you have any heart disease, can cause a dan...
- I take timolol tablets for high blood pressure. Is it safe to just stop if I feel fine?
Patient education
Supplement & herbal interactions
Timolol may be associated with lower levels of 1 nutrient — worth a chat with your pharmacist, not a cause for alarm.
Where does this data come from?
Ask a licensed pharmacist directly — free, answered by our team.
🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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0.1 mg / 1 mL
UNII F5UM2KM3W7
Benzalkonium chloride is a chemical compound that works as a preservative and antimicrobial agent in medications. It prevents bacterial and fungal growth in liquid formulations to keep the product safe during storage and use.
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UNII 451W47IQ8X
Sodium chloride is common table salt. It's used in medicines as a buffer to maintain proper pH, as a filler to add bulk, or to adjust the osmotic balance in liquid formulations.
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UNII 55X04QC32I
A strong alkaline chemical used to adjust and maintain the pH balance of liquid medicines. It helps keep the medicine stable and ensures it stays effective during storage.
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UNII E1W4N241FO
A salt compound derived from phosphoric acid and sodium, used as a buffer to help maintain the medication's pH level and as a filler to give the tablet or capsule its proper form and size.
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UNII 5QWK665956
A salt derived from phosphoric acid and sodium, used primarily as a buffer to control the acidity or pH of a medication, helping keep it stable during storage and use.
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UNII 059QF0KO0R
Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
6 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $0.760 | $11.40 / 15 ml |
| Medicaid paysCMS SDUD · 12 mo | $1.24 | $18.62 / 15 ml |
| Medicare drug plans payPart D · Q2 2026 | $0.8743 | $13.11 / 15 ml |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Timolol Maleate 5 mg/mL 65145-0153-01 | Caplin | 1 bottle | $0.732 | AT1 | Availability likely | save 4% |
| Timolol maleate 5 mg/mL 70069-0707-01 | Somerset | 1 bottle | $0.732 | AT1 | Availability likely | save 4% |
| timolol maleate 5 mg/mL 70756-0657-30 | Lifestar | 1 bottle | $0.732 | AT1 | Availability likely | save 4% |
| Timolol Maleate 5 mg/mLthis 64980-0514-15 | Rising | 1 bottle | $0.760 | AT1 | Availability likely | — |
| Timolol Maleate 5 mg/mL 65145-0154-01 | Caplin | 1 bottle | $0.760 | AT1 | Availability likely | — |
| Timolol maleate 5 mg/mL 70069-0708-01 | Somerset | 1 bottle | $0.760 | AT1 | Availability likely | — |
| Timolol Maleate 5 mg/mL 42571-0404-21 | Micro | 5 ml | $1.059 | AT1 | Availability likely | +39% |
| Timolol Maleate 5 mg/mL 60758-0801-05 | Pacific | 1 bottle | $1.059 | AT1 | Availability likely | +39% |
| Timolol Maleate 5 mg/mL 61314-0227-05 | Sandoz | 5 ml | $1.059 | AT1 | Availability likely | +39% |
| Timolol Maleate 5 mg/mL 65145-0152-01 | Caplin | 1 bottle | $1.059 | AT1 | Availability likely | +39% |
| Timolol Maleate 5 mg/mL 69315-0325-05 | Leading | 5 ml | $1.059 | AT1 | Availability likely | +39% |
| Timolol maleate 5 mg/mL 70069-0706-01 | Somerset | 1 bottle | $1.059 | AT1 | Availability likely | +39% |
| timolol maleate 5 mg/mL 70756-0656-15 | Lifestar | 1 bottle | $1.059 | AT1 | Availability likely | +39% |
| timolol maleate 5 mg/mL 72603-0540-01 | NorthStar | 1 bottle | $1.059 | AT1 | Availability likely | +39% |
| Timolol Maleate 5 mg/mL 82260-0813-05 | Bausch | 1 bottle | $1.059 | AT1 | Availability likely | +39% |
| Timoptic in Ocudose 5 mg/mL 69918-0601-60 | Nordic | 60 pouches | $1.187 | AT3 | Availability likely | +56% |
| Timolol Maleate 5 mg/mL 82260-0819-05 | Bausch | 1 bottle | $10.066 | AB | Availability likely | +1224% |
| Timolol Maleate 5 mg/mL 82260-0045-05 | Bausch | 1 bottle | $23.655 | AT2 | Availability likely | +3011% |
| Timolol Maleate 5 mg/mL 68682-0045-25 | Oceanside | 1 bottle | $26.378 | AT2 | Discontinued | +3370% |
| Istalol 5 mg/mL 24208-0004-01 | Bausch | 1 bottle | $79.763 | AT2 | Availability likely | +10392% |
| Timoptic 5 mg/mL 24208-0813-05 | Bausch | 1 bottle | — | AT1 | FDA listed | — |
| Timolol Maleate 5 mg/mL 50090-3441-00 | A-S | 10 ml | — | AT1 | FDA listed | — |
| Timolol Maleate 5 mg/mL 50090-5769-00 | A-S | 1 bottle | — | AT1 | FDA listed | — |
| Timolol Maleate 5 mg/mL 50090-7837-00 | A-S | 1 bottle | — | AT1 | FDA listed | — |
| timolol maleate 5 mg/mL 81469-0210-05 | First | 1 bottle | — | AT1 | FDA listed | — |
| Timoptic-XE 5 mg/mL 24208-0816-05 | Bausch | 1 bottle | — | AB | FDA listed | — |
| Timolol Maleate 5 mg/mL 59651-0313-05 | Aurobindo | 1 bottle | — | AB | FDA listed | — |
| Timolol Maleate 5 mg/mL 50090-1852-00 | A-S | 1 bottle | — | AT1 | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
🗺️ Medicaid utilization & spend
💊 Medicaid utilization by pack size
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
🔬 Reported adverse events (FAERS)
Top reported reactions
Age at onset
Reporter sex
Serious outcomes
Where does this data come from?
📦 Packaging — all sizes for this product
| Package NDC | Description | Per unit | Per pack | Marketing start | Status |
|---|---|---|---|---|---|
| 64980-0514-01 | 1 BOTTLE in 1 CARTON (64980-514-01) / 10 mL in 1 BOTTLE | $0.7316 / mL | $7.32 | 2014-12-15 | Active |
| 64980-0514-05 | 1 BOTTLE in 1 CARTON (64980-514-05) / 5 mL in 1 BOTTLE | $1.06 / mL | $5.30 | 2014-12-15 | Active |
| 64980-0514-15 You're viewing this | 1 BOTTLE in 1 CARTON (64980-514-15) / 15 mL in 1 BOTTLE | $0.7603 / mL | $11.40 | 2014-12-15 | Active |
Per mL, this pack runs about 4% above the cheapest pack (NDC 64980-0514-01, $0.7316 vs $0.7603 NADAC).
This pack accounts for about 10% of this product's recent Medicaid fills; most go to a different pack size. See all packs ↓
Pack size FAQ
What quantity is in NDC 64980-0514-15?
What NDC number is used to bill for this package of TIMOLOL MALEATE 5 mg/mL Solution/ Drops?
Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
INDICATIONS AND USAGE Timolol maleate ophthalmic solution is indicated in the treatment of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma.
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION Timolol maleate ophthalmic solution is available in concentrations of 0.25 and 0.5 %. The usual starting dose is one drop of timolol maleate ophthalmic solution 0.25 % in the affected eye(s) twice a day. If the clinical response is not adequate, the dosage may be changed to one drop of 0.5 % solution in the affected eye(s) twice a day.
Since in some patients the pressure-lowering response to timolol maleate ophthalmic solution may require a few weeks to stabilize, evaluation should include a determination of intraocular pressure after approximately 4 weeks of treatment with timolol maleate ophthalmic solution. If the intraocular pressure is maintained at satisfactory levels, the dosage schedule may be changed to one drop once a day in the affected eye(s). Because of diurnal variations in intraocular pressure, satisfactory response to the once-a-day dose is best determined by measuring the intraocular pressure at different times during the day.
Dosages above one drop of timolol maleate ophthalmic solution 0.5 % twice a day generally have not been shown to produce further reduction in intraocular pressure. If the patient's intraocular pressure is still not at a satisfactory level on this regimen, concomitant therapy with other agent(s) for lowering intraocular pressure can be instituted. The concomitant use of two topical beta-adrenergic blocking agents is not recommended. [See PRECAUTIONS, Drug Interactions, Beta-adrenergic blocking agents ]
⛔ Contraindications ▾
CONTRAINDICATIONS Timolol maleate ophthalmic solution is contraindicated in patients with (1) bronchial asthma; (2) a history of bronchial asthma; (3) severe chronic obstructive pulmonary disease [see WARNINGS ] ; (4) sinus bradycardia; (5) second or third degree atrioventricular block; (6) overt cardiac failure [see WARNINGS ] ; (7) cardiogenic shock; or (8) hypersensitivity to any component of this product.
⚠️ Warnings ▾
WARNINGS As with many topically applied ophthalmic drugs, this drug is absorbed systemically. The same adverse reactions found with systemic administration of beta-adrenergic blocking agents may occur with topical administration. For example, severe respiratory reactions and cardiac reactions, including death due to bronchospasm in patients with asthma, and rarely death in association with cardiac failure, have been reported following systemic or ophthalmic administration of timolol maleate [see CONTRAINDICATIONS ] .
Cardiac Failure Sympathetic stimulation may be essential for support of the circulation in individuals with diminished myocardial contractility, and its inhibition of beta-adrenergic receptor blockade may precipitate more severe failure. In Patients Without a History of Cardiac Failure continued depression of the myocardium with beta-blocking agents over a period of time can, in some cases, lead to cardiac failure. At the first sign or symptom of cardiac failure, timolol maleate ophthalmic solution should be discontinued.
Obstructive Pulmonary Disease Patients with chronic obstructive pulmonary disease (e.g., chronic bronchitis, emphysema) of mild or moderate severity, bronchospastic disease, or a history of bronchospastic disease (other than bronchial asthma or a history of bronchial asthma, in which timolol maleate ophthalmic solution is contraindicated [see CONTRAINDICATIONS ] ) should, in general, not receive beta-blockers, including timolol maleate ophthalmic solution. Major Surgery The necessity or desirability of withdrawal of beta-adrenergic blocking agents prior to major surgery is controversial.
Beta-adrenergic receptor blockade impairs the ability of the heart to respond to beta-adrenergically mediated reflex stimuli. This may augment the risk of general anesthesia in surgical procedures. Some patients receiving beta-adrenergic receptor blocking agents have experienced protracted severe hypotension during anesthesia.
Difficulty in restarting and maintaining the heartbeat has also been reported. For these reasons, in patients undergoing elective surgery, some authorities recommend gradual withdrawal of beta-adrenergic receptor blocking agents. If necessary during surgery, the effects of beta-adrenergic blocking agents may be reversed by sufficient doses of adrenergic agonists.
Diabetes Mellitus Beta-adrenergic blocking agents should be administered with caution in patients subject to spontaneous hypoglycemia or to diabetic patients (especially those with labile diabetes) who are receiving insulin or oral hypoglycemic agents. Beta-adrenergic receptor blocking agents may mask the signs and symptoms of acute hypoglycemia. Thyrotoxicosis Beta-adrenergic blocking agents may mask certain clinical signs (e.g., tachycardia) of hyperthyroidism.
Patients suspected of developing thyrotoxicosis should be managed carefully to avoid abrupt withdrawal of beta-adrenergic blocking agents that might precipitate a thyroid storm.
🤒 Adverse Reactions ▾
ADVERSE REACTIONS The most frequently reported adverse experiences have been burning and stinging upon instillation (approximately one in eight patients). The following additional adverse experiences have been reported less frequently with ocular administration of this or other timolol maleate formulations: Body as a Whole Headache, asthenia/fatigue, and chest pain. Cardiovascular Bradycardia, arrhythmia, hypotension, hypertension, syncope, heart block, cerebral vascular accident, cerebral ischemia, cardiac failure, worsening of angina pectoris, palpitation, cardiac arrest, pulmonary edema, edema, claudication, Raynaud's phenomenon, and cold hands and feet.
Digestive Nausea, diarrhea, dyspepsia, anorexia, and dry mouth. Immunologic Systemic lupus erythematosus. Nervous System/Psychiatric Dizziness, increase in signs and symptoms of myasthenia gravis, paresthesia, somnolence, insomnia, nightmares, behavioral changes and psychic disturbances including depression, confusion, hallucinations, anxiety, disorientation, nervousness, and memory loss.
Skin Alopecia and psoriasiform rash or exacerbation of psoriasis. Hypersensitivity Signs and symptoms of systemic allergic reactions, including anaphylaxis, angioedema, urticaria, and localized and generalized rash. Respiratory Bronchospasm (predominantly in patients with pre-existing bronchospastic disease), respiratory failure, dyspnea, nasal congestion, cough and upper respiratory infections.
Endocrine Masked symptoms of hypoglycemia in diabetic patients [see WARNINGS] . Special Senses Signs and symptoms of ocular irritation including conjunctivitis, blepharitis, keratitis, ocular pain, discharge (e.g., crusting), foreign body sensation, itching and tearing, and dry eyes; ptosis; decreased corneal sensitivity; cystoid macular edema; visual disturbances including refractive changes and diplopia; pseudopemphigoid; choroidal detachment following filtration surgery [see PRECAUTIONS , General ] ; and tinnitus.
Urogenital Retroperitoneal fibrosis, decreased libido, impotence, and Peyronie's disease. The following additional adverse effects have been reported in clinical experience with ORAL timolol maleate or other ORAL beta-blocking agents and may be considered potential effects of ophthalmic timolol maleate: Allergic: Erythematous rash, fever combined with aching and sore throat, laryngospasm with respiratory distress; Body as a Whole: Extremity pain, decreased exercise tolerance, weight loss; Cardiovascular: Worsening of arterial insufficiency, vasodilatation; Digestive: Gastrointestinal pain, hepatomegaly, vomiting, mesenteric arterial thrombosis, ischemic colitis; Hematologic: Nonthrombocytopenic purpura; thrombocytopenic purpura, agranulocytosis; Endocrine: Hyperglycemia, hypoglycemia; Skin: Pruritus, skin irritation, increased pigmentation, sweating; Musculoskeletal: Arthralgia; Nervous System/Psychiatric: Vertigo, local weakness, diminished concentration, reversible mental depression progressing to catatonia, an acute reversible syndrome characterized by disorientation for time and place, emotional lability, slightly clouded sensorium, and decreased performance on neuropsychometrics; Respiratory: Rales, bronchial obstruction; Urogenital: Urination difficulties.
To report SUSPECTED ADVERSE REACTIONS, contact Rising Pharma Holdings, Inc. at 1-844-874-7464 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
🔄 Drug Interactions ▾
Drug Interactions Although timolol maleate ophthalmic solution used alone has little or no effect on pupil size, mydriasis resulting from concomitant therapy with timolol maleate ophthalmic solution and epinephrine has been reported occasionally. Beta-adrenergic blocking agents: Patients who are receiving a beta-adrenergic blocking agent orally and timolol maleate ophthalmic solution should be observed for potential additive effects of beta-blockade, both systemic and on intraocular pressure. The concomitant use of two topical beta-adrenergic blocking agents is not recommended.
Calcium antagonists: Caution should be used in the coadministration of beta-adrenergic blocking agents, such as timolol maleate ophthalmic solution, and oral or intravenous calcium antagonists because of possible atrioventricular conduction disturbances, left ventricular failure, and hypotension. In patients with impaired cardiac function, coadministration should be avoided. Catecholamine-depleting drugs: Close observation of the patient is recommended when a beta blocker is administered to patients receiving catecholamine-depleting drugs such as reserpine, because of possible additive effects and the production of hypotension and/or marked bradycardia, which may result in vertigo, syncope, or postural hypotension.
Digitalis and calcium antagonists: The concomitant use of beta-adrenergic blocking agents with digitalis and calcium antagonists may have additive effects in prolonging atrioventricular conduction time. CYP2D6 inhibitors: Potentiated systemic beta-blockade (e.g., decreased heart rate, depression) has been reported during combined treatment with CYP2D6 inhibitors (e.g. quinidine, SSRIs) and timolol. Clonidine: Oral beta-adrenergic blocking agents may exacerbate the rebound hypertension, which can follow the withdrawal of clonidine.
There have been no reports of exacerbation of rebound hypertension with ophthalmic timolol maleate. Injectable epinephrine: [See PRECAUTIONS , General , Anaphylaxis ]
🤰 Pregnancy ▾
Pregnancy: Teratogenic Effects Teratogenicity studies with timolol in mice, rats, and rabbits at oral doses up to 50 mg/kg/day (7,000 times the systemic exposure following the maximum recommendedhuman ophthalmic dose) demonstrated no evidence of fetal malformations. Although delayed fetal ossification was observed at this dose in rats, there were no adverse effects on postnatal development of offspring. Doses of 1000 mg/kg/day (142,000 times the systemic exposure following the maximum recommended human ophthalmic dose) were maternotoxic in mice and resulted in an increased number of fetal resorptions.
Increased fetal resorptions were also seen in rabbits at doses of 14,000 times the systemic exposure following the maximum recommended human ophthalmic dose, in this case without apparent maternotoxicity. There are no adequate and well-controlled studies in pregnant women. Timolol maleate ophthalmic solution should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
🧒 Pediatric Use ▾
Pediatric Use Safety and effectiveness of timolol maleate ophthalmic solution have been established when administered in pediatric patients aged 2 years and older. Use of timolol maleate ophthalmic solution in these children is supported by evidence from adequate and well controlled studies in children and adults. Safety and efficacy in pediatric patients below the age of 2 years have not been established.
🧓 Geriatric Use ▾
Geriatric Use No overall differences in safety or effectiveness have been observed between elderly and younger patients.
🆘 Overdosage ▾
OVERDOSAGE There have been reports of inadvertent overdosage with timolol maleate ophthalmic solution resulting in systemic effects similar to those seen with systemic beta-adrenergic blocking agents such as dizziness, headache, shortness of breath, bradycardia, bronchospasm, and cardiac arrest (see ADVERSE REACTIONS ). Overdosage has been reported with timolol maleate tablets. A 30-year-old female ingested 650 mg of timolol maleate tablets (maximum recommended oral daily dose is 60 mg) and experienced second and third degree heart block.
She recovered without treatment but approximately two months later developed irregular heartbeat, hypertension, dizziness, tinnitus, faintness, increased pulse rate, and borderline first degree heart block. An in vitro hemodialysis study, using 14 C timolol added to human plasma or whole blood, showed that timolol was readily dialyzed from these fluids; however, a study of patients with renal failure showed that timolol did not dialyze readily.
🧬 Clinical Pharmacology ▾
CLINICAL PHARMACOLOGY Mechanism of Action Timolol maleate is a beta 1 and beta 2 (non-selective) adrenergic receptor blocking agent that does not have significant intrinsic sympathomimetic, direct myocardial depressant, or local anesthetic (membrane-stabilizing) activity. Beta-adrenergic receptor blockade reduces cardiac output in both healthy subjects and patients with heart disease. In patients with severe impairment of myocardial function, beta-adrenergic receptor blockade may inhibit the stimulatory effect of the sympathetic nervous system necessary to maintain adequate cardiac function.
Beta-adrenergic receptor blockade in the bronchi and bronchioles results in increased airway resistance from unopposed parasympathetic activity. Such an effect in patients with asthma or other bronchospastic conditions is potentially dangerous. Timolol maleate ophthalmic solution, when applied topically on the eye, has the action of reducing elevated as well as normal intraocular pressure, whether or not accompanied by glaucoma.
Elevated intraocular pressure is a major risk factor in the pathogenesis of glaucomatous visual field loss. The higher the level of intraocular pressure, the greater the likelihood of glaucomatous visual field loss and optic nerve damage. The onset of reduction in intraocular pressure following administration of timolol maleate ophthalmic solution can usually be detected within one-half hour after a single dose.
The maximum effect usually occurs in one to two hours and significant lowering of intraocular pressure can be maintained for periods as long as 24 hours with a single dose. Repeated observations over a period of one year indicate that the intraocular pressure-lowering effect of timolol maleate ophthalmic solution is well maintained. The precise mechanism of the ocular hypotensive action of timolol maleate ophthalmic solution is not clearly established at this time.
Tonography and fluorophotometry studies in man suggest that its predominant action may be related to reduced aqueous formation. However, in some studies a slight increase in outflow facility was also observed. Pharmacokinetics In a study of plasma drug concentration in six subjects, the systemic exposure to timolol was determined following twice daily administration of timolol maleate ophthalmic solution 0.5%.
The mean peak plasma concentration following morning dosing was 0.46 ng/mL and following afternoon dosing was 0.35 ng/mL. Clinical Studies In controlled multiclinic studies in patients with untreated intraocular pressures of 22 mmHg or greater, timolol maleate ophthalmic solution 0.25 % or 0.5 % administered twice a day produced a greater reduction in intraocular pressure than 1, 2, 3, or 4 % pilocarpine solution administered four times a day or 0.5, 1, or 2 % epinephrine hydrochloride solution administered twice a day.
In these studies, timolol maleate ophthalmic solution was generally well tolerated and produced fewer and less severe side effects than either pilocarpine or epinephrine. A slight reduction of resting heart rate in some patients receiving timolol maleate ophthalmic solution (mean reduction 2.9 beats/minute standard deviation 10.2) was observed.
🧬 Mechanism of Action ▾
Mechanism of Action Timolol maleate is a beta 1 and beta 2 (non-selective) adrenergic receptor blocking agent that does not have significant intrinsic sympathomimetic, direct myocardial depressant, or local anesthetic (membrane-stabilizing) activity. Beta-adrenergic receptor blockade reduces cardiac output in both healthy subjects and patients with heart disease. In patients with severe impairment of myocardial function, beta-adrenergic receptor blockade may inhibit the stimulatory effect of the sympathetic nervous system necessary to maintain adequate cardiac function.
Beta-adrenergic receptor blockade in the bronchi and bronchioles results in increased airway resistance from unopposed parasympathetic activity. Such an effect in patients with asthma or other bronchospastic conditions is potentially dangerous. Timolol maleate ophthalmic solution, when applied topically on the eye, has the action of reducing elevated as well as normal intraocular pressure, whether or not accompanied by glaucoma.
Elevated intraocular pressure is a major risk factor in the pathogenesis of glaucomatous visual field loss. The higher the level of intraocular pressure, the greater the likelihood of glaucomatous visual field loss and optic nerve damage. The onset of reduction in intraocular pressure following administration of timolol maleate ophthalmic solution can usually be detected within one-half hour after a single dose.
The maximum effect usually occurs in one to two hours and significant lowering of intraocular pressure can be maintained for periods as long as 24 hours with a single dose. Repeated observations over a period of one year indicate that the intraocular pressure-lowering effect of timolol maleate ophthalmic solution is well maintained. The precise mechanism of the ocular hypotensive action of timolol maleate ophthalmic solution is not clearly established at this time.
Tonography and fluorophotometry studies in man suggest that its predominant action may be related to reduced aqueous formation. However, in some studies a slight increase in outflow facility was also observed.
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED Sterile ophthalmic solution of timolol maleate is a clear, colorless solution. Timolol maleate ophthalmic solution USP, 0.25% timolol equivalent, is supplied in a labeled translucent LDPE bottle with insert cap assembly comprising of a yellow colored HDPE screw cap over a LDPE nozzle with tamper-evident LDPE dust- cover sealing the bottle cap. NDC 64980-513-05, 5 mL in a 5 mL bottle NDC 64980-513-01, 10 mL in a 10 mL bottle NDC 64980-513-15, 15 mL in a 15 mL bottle Timolol maleate ophthalmic solution USP, 0.5% timolol equivalent, is supplied in a labeled translucent LDPE bottle with insert cap assembly comprising of a yellow colored HDPE screw cap over a LDPE nozzle with tamper-evident LDPE dust- cover sealing the bottle cap.
NDC 64980-514-05, 5 mL in a 5 mL bottle NDC 64980-514-01, 10 mL in a 10 mL bottle NDC 64980-514-15, 15 mL in a 15 mL bottle Storage Store at 15°C to 25°C (59°F to 77°F). Protect from freezing. Protect from light.
After opening, timolol maleate ophthalmic solution can be used until the expiration date on the bottle.
📋 Description ▾
DESCRIPTION Timolol maleate ophthalmic solution is a non-selective beta-adrenergic receptor blocking agent. Its chemical name is (-)-1-( tert -butylamino)-3-[(4-morpholino-1,2,5-thiadiazol-3-yl)oxy]-2-propanol maleate (1:1) (salt). Timolol maleate possesses an asymmetric carbon atom in its structure and is provided as the levo-isomer.
The optical rotation of Timolol maleate is: Its molecular formula is C 13 H 24 N 4 O 3 S•C 4 H 4 O 4 and its structural formula is: Timolol maleate has a molecular weight of 432.50. It is a white, odorless, crystalline powder which is soluble in water, sparingly soluble in ethanol; slightly soluble in chloroform; practically insoluble in ether. Timolol maleate is stable at room temperature.
Timolol maleate ophthalmic solution is supplied as a sterile, isotonic, buffered, aqueous solution of timolol maleate in two dosage strengths: Each mL of timolol maleate ophthalmic solution 0.25% contains 2.5 mg of timolol (3.4 mg of timolol maleate). The pH of the solution is approximately 7, and the osmolarity is 274-328 mOsm/ Kg. Each mL of timolol maleate ophthalmic solution 0.5% contains 5 mg of timolol (6.8 mg of timolol maleate).
Inactive ingredients: monobasic and dibasic sodium phosphate, sodium chloride, sodium hydroxide to adjust pH, and water for injection. Benzalkonium chloride 0.01% is added as preservative. Timolol Optical Rotation Timolol Structure
💬 Information for Patients ▾
Information for Patients Patients should be instructed to avoid allowing the tip of the dispensing container to contact the eye or surrounding structures. Patients should also be instructed that ocular solutions, if handled improperly or if the tip of the dispensing container contacts the eye or surrounding structures, can become contaminated by common bacteria known to cause ocular infections. Serious damage to the eye and subsequent loss of vision may result from using contaminated solutions. [See PRECAUTIONS , General.] Patients should also be advised that if they have ocular surgery or develop an intercurrent ocular condition (e.g., trauma or infection), they should immediately seek their physician's advice concerning the continued use of the present multidose container.
Patients with bronchial asthma, a history of bronchial asthma, severe chronic obstructive pulmonary disease, sinus bradycardia, second or third degree atrioventricular block, or cardiac failure should be advised not to take this product. [See CONTRAINDICATIONS .] Patients should be advised that timolol maleate ophthalmic solution contains benzalkonium chloride which may be absorbed by soft contact lenses. Contact lenses should be removed prior to administration of the solution. Lenses may be reinserted 15 minutes following timolol maleate ophthalmic solution administration.